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Environmental Chemistry - 14
1.
The thickness of the ozone layer has been increasing.
a) True
b) False
2.
Petroleum or crude oil is a complex mixture of many compounds mainly hydrocarbons.
a) False
b) True
3.
The use of various pesticides also helped in the eradication of disease such as cold.
a) True
b) False
4.
Pb, Cd, Cr, Hg and As are not industrial pollutants.
a) True
b) False
5.
NH
3
+ 3HOCl →NH
4
Cl + H
2,/sub>O
a) False
b) True
6.
Polyethylene terephthalate can be thermally depolymerized in the presence of a catalyst.
a) False
b) True
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